package com.lidsu.gulimall.cart.controller;

import com.lidsu.common.constant.AuthServerConstant;
import com.lidsu.gulimall.cart.interceptor.CartInterceptor;
import com.lidsu.gulimall.cart.service.CartService;
import com.lidsu.gulimall.cart.vo.Cart;
import com.lidsu.gulimall.cart.vo.CartItem;
import com.lidsu.gulimall.cart.vo.UserInfoTo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

@Controller
public class CartController {

    @Autowired
    CartService cartService;

    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems(){
        return cartService.getUserCartItems();
    }



    @GetMapping("/deleteItem")
    public String countItem(@RequestParam("skuId") Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.lidsu.icu/cart.html";
    }

    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num){
        cartService.changeItemCount(skuId,num);

        return "redirect:http://cart.lidsu.icu/cart.html";
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId,
                            @RequestParam("check") Integer check){
        cartService.checkItem(skuId,check);

        return "redirect:http://cart.lidsu.icu/cart.html";
    }

    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        ////1.快速得到用户信息，id,user-key
        //UserInfoTo userInfoTo = CartInterceptor.threadLocal.get();

        Cart cart = cartService.getCart();
        model.addAttribute("cart",cart);
        return "cartList";
    }

    /**
     * 添加商品到购物车
     * @param skuId
     * @param num
     * @param ra
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     *  ra.addFlashAttribute()  将页面放到session中 可以在页面取出 而且只能取出一次
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num,
                            RedirectAttributes ra) throws ExecutionException, InterruptedException {

        cartService.addToCart(skuId,num);
        //model.addAttribute("skuId",skuId);
        ra.addAttribute("skuId",skuId);
        return "redirect:http://cart.lidsu.icu/addToCartSuccess.html";
    }

    /**
     * 跳转到成功页面
     * @param skuId
     * @param model
     * @return
     */
    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId,Model model){
        CartItem item = cartService.getCartItem(skuId);
        model.addAttribute("item",item);
        return  "success";
    }
}
